Troubleshooting Titan BrakeRite Electric Over Hydraulic Trailer Brake Actuator-Won't Build Pressure

Question

Question:

So, have the actuator, and have used this on my large boat trailer for years. Have a 2011 Dodge Ram with integrated brake controller, that I have unplugged, and use a Tekonsha brake controller, plugged into the factory harness. Had trailer built in 2012, and have used it with no issues until this year. Suddenly when first braking, or manually actuating the controller, the pump will spin up, but not build pressure. Release and reapply/reactuate, and it spins up and builds the requested pressure. Thought it was an actuator issue, and purchased a new one. Have the same issue with the new one. Tried new trailer wiring, same issue. Have the same issue using the after market controller, or the factory controller? Friends truck plugged into trailer, works as expected, every time? So, it about has to be something with the truck wiring? Both controller get the same result. It will work every time you cycle it once, then recycle, until you let it sit for a 10 or 15 seconds, then it wont pressure up again. Seems like a relay kind of issue? Any thoughts? Jason

asked by: Jason M

0

Expert Reply:

I spoke with my contact at Tekonsha, who is doubtful the controller is the issue. The voltage from the controlleer that's sent to the actuator is very minimal, it's just telling the actuator when and how hard to fire. The actuator is actually powered by the 12 volt auxiliary circuit from the 7-way, which delivers the power that actually runs the actuator. Since the controller will cause the actuator to cycle, and using a different truck seems to solve the problem, it tends to point the finger at the 12-volt accessory circuit. I'd recommend that you check to see that you're getting nearly 12 V coming into the actuator.

expert reply by: Mike L

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Answer 1

It sounds like that there is something causing a issue with the power coming in from your brake controller (blue wire). To start you will want to verify that you are getting constant 12 volt power using a Multimeter #PT89ZR, to your black wire and…

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Answer 2

The pump should come on when you hit the brakes with your Dexter EOH system. I hope you have the Dexter #K71-651 for disc brakes versus the #K71-650 you asked from which will not work with disc brakes because it won't provide enough pressure.…

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Answer 3

It sounds as though there is a short or something is mis-wired. Using a circuit tester, like the #PTW2993, check the connection points in the vehicle side connector, to see if there is constant power on the running light circuit (brown wire on the…

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Answer 4

First, make sure that the adapter #T48456000, is wired into the input wires on the BrakeRite EHB. White to white and blue to blue. The adapter is simulating the load of brake magnets so that the brake controller thinks there are just electric…

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Answer 5

If you have a Titan BrakeRite Electric-Hydraulic Actuator for Disc Brakes like part #T4813102 installed there is a way you can troubleshoot the system to make sure it is faulty before replacing it. You would perform a 3 wire test. You will need a 12…

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Answer 6

The Replacement Remote Mounted SD Control Module for BrakeRite II T4834200 was discontinued a little over a year ago back at the start of 2021. So while it might be the correct replacement for your system, it isn't readily available on the market…

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Answer 7

The issue that you are seeing may indeed be an electrical issue. I recommend checking all the connections and wiring and make sure that there are not any loose connections, or signs of damage to any of the wiring. I have included a link to the…

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Answer 8

It sounds like the motor is running but not building pressure. This could indicate a leak somewhere since you have a full reservoir. The next thing you can do is bleed the brakes to ensure the system is free of air in the lines. I have included a…

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Answer 9

Sounds like an internal issue with the circuit board which you'd have to speak directly to them about: csdexter25@dexteraxle.com

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Answer 10

If the Dexter actuator, #K71-651, is not building pressure then according to Dexter the unit could be defective. If the unit is wiring up correctly, see diagram, and you ahve run through all of the troubleshooting procedures below and it is still not…

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Answer 11

The factory brake controller on your 2018 Ford F-450 is designed to work on electric over hydraulic brake systems. One note I did find in your owners manual is brake output is diminished by the truck at speeds of 11mph or lower so this will explain…

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Answer 12

In order to replace a rotor/hub that came with the Titan Disc Brake Kit part #T4843800 you will want to use the Titan Disc Brake Assembly part #T10HREKITBB which comes with everything that you need in addition to a new caliper and brake pads. This…

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Troubleshooting Titan BrakeRite Electric Over Hydraulic Trailer Brake Actuator-Won't Build Pressure

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